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PatchSiren cyber security CVE debrief

CVE-2026-42774 Crocoblock CVE debrief

A critical SQL injection vulnerability (CWE-89) in Crocoblock JetEngine, a WordPress plugin, allows unauthenticated attackers to execute arbitrary SQL commands. The vulnerability affects all versions from n/a through 3.8.8.1. With a CVSS 3.1 score of 9.3 (Critical), this represents a severe risk to WordPress sites using the affected plugin, particularly due to the network-attackable vector, low attack complexity, and no required privileges or user interaction. The scope is changed (S:C), indicating impact beyond the vulnerable component. The confidentiality impact is rated High, while availability impact is Low, and integrity impact is None per the CVSS vector. The CVE was published on May 25, 2026, and modified on May 26, 2026. No known exploitation in ransomware campaigns has been documented, and the vulnerability is not listed in CISA KEV.

Vendor
Crocoblock
Product
JetEngine
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-25
Original CVE updated
2026-05-26
Advisory published
2026-05-25
Advisory updated
2026-05-26

Who should care

WordPress site administrators using Crocoblock JetEngine plugin; security teams managing WordPress deployments; hosting providers with JetEngine customers; compliance officers responsible for data protection in WordPress environments

Technical summary

The JetEngine plugin for WordPress fails to properly sanitize user-supplied input before incorporating it into SQL queries. This improper neutralization of special elements (CWE-89) enables SQL injection attacks that can be executed without authentication. The attack complexity is low, requires no user interaction, and can affect resources beyond the vulnerable component scope. The high confidentiality impact suggests potential for sensitive data extraction from the WordPress database.

Defensive priority

critical

Recommended defensive actions

  • Immediately update JetEngine to a version newer than 3.8.8.1 if available, or apply vendor-provided patches
  • Review database access logs for suspicious SQL queries, particularly around JetEngine functionality
  • Implement Web Application Firewall (WAF) rules to detect and block SQL injection attempts targeting JetEngine endpoints
  • Consider temporarily disabling JetEngine functionality if patching is not immediately feasible and the plugin is not business-critical
  • Audit user accounts and database integrity for signs of unauthorized access or data exfiltration
  • Subscribe to Crocoblock security advisories for updated patch information

Evidence notes

SQL injection confirmed via CWE-89 classification. Affected versions explicitly stated as through 3.8.8.1. CVSS vector confirms unauthenticated network exploitation with changed scope.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-42774 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-42774

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-42774 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-42774

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.